Senior Full-Stack Developer, Internal Tooling

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time.

We are looking for software engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Full-Stack Developer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices.

WHAT YOU WILL DO:

• Design, develop, and maintain scalable backend services and APIs.
• Build dynamic, user-friendly frontends using modern frameworks like React.
• Work closely with design and product teams to ensure seamless integration of user-facing and server-side features.
• Collaborate on system architecture and design decisions, emphasizing security, performance, and scalability.
• Implement automated testing across the stack to ensure high-quality deliverables.
• Optimize applications for performance and scalability in both backend and frontend layers.
• Write clean, reusable, and efficient code while adhering to best practices.

WHAT YOU WILL NEED:

• Strong backend expertise in Kotlin or Java
• Solid understanding of databases (PostgreSQL, MySQL)
• Understanding of system design principles and scalable architectures
• Proficiency in frontend technologies like React
• Experience with event-driven architectures (e.g., Kafka, RabbitMQ).
• Strong problem-solving skills and ability to debug complex systems.

NICE TO HAVE:

• Experience with cloud platforms like GCP, AWS or Azure
• Knowledge of blockchain technologies or financial systems.
• Skills in performance optimization on both client and server sides.
• Familiarity with Docker and CI/CD tools.

COMPENSATION & PERKS

• Competitive full-time salary based on experience and meaningful equity in an industry-leading company
• The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry.
• Unlimited vacation policy; work hard and take time when you need it.
• Performance-based bonuses paid in cash
• Apple equipment provided by the company
• Hybrid role from our office in Palermo, Buenos Aires.

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time.

You may contact our Data Protection Officer by email at dpo@blockchain.com. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment.

Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses. 

Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment.  Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.